I'm not sure that's the solution. The entire error message reads
An FTP error occurred - cannot make connection to host.
Dreamweaver could not find the host "newcastlesailingclub.org:23". This may be due to one of or more of the following reasons:
-The network cable is unplugged (it isn't) or the network is down. Please verify that the network cable is connected and the networks is up (email and internet work just fine).
- The FTP server is down (others can use it). Please verify that you can connect to the FTP server (I can't) using another FTP program.
-The FTP host name is incorrect (newcastlesailingclub.org). Please verify the name is correct in the Site definition dialog box (?).
Accessing the server requires proxy settings that aren't properly set (is this the problem?). Please verify that the proxy settings in the Site category of the Preferences dialog box are properly set (to what?), and that the Use Proxy option in the Site definition box are selected (I've tried 21, 22 & 23).
It is possible your FTP may be using a nonstandard FTP port (21) (is it nonstandard?) If you need to specify nonstandard port, enter the port number after the host name separated by a ":"
Are you familiar with Dreamweaver or do you know someone that is?)
Does any of this make sense? Does this help define the problem?